Ultrasonic Pulsating Water Jet Peening: Influence of Pressure and Pattern Strategy
Peening techniques are nowadays attracting more research attention due to their association with the extending of the service life and improving surface texture of engineering components. Ultrasonic pulsating water jet peening represents a new way of mechanical surface treatment. Accelerated water d...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-10-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/14/20/6019 |
| _version_ | 1797514010292125696 |
|---|---|
| author | Gabriel Stolárik Akash Nag Jana Petrů Jaroslava Svobodová Sergej Hloch |
| author_facet | Gabriel Stolárik Akash Nag Jana Petrů Jaroslava Svobodová Sergej Hloch |
| author_sort | Gabriel Stolárik |
| collection | DOAJ |
| description | Peening techniques are nowadays attracting more research attention due to their association with the extending of the service life and improving surface texture of engineering components. Ultrasonic pulsating water jet peening represents a new way of mechanical surface treatment. Accelerated water droplets via hammer effect cause small elastic-plastic deformations on the surface. This work deals with peening of aluminum alloy using an ultrasonic pulsating water jet, where periodically acting water droplets were used as the peening medium. The aim of the work was the feasibility study of the peening process and to observe the effects of pressure (<i>p</i> = 10, 20 and 30 MPa) and pattern trajectory (linear hatch and cross hatch). The peened surfaces were analyzed by the surface roughness profile parameters Ra and Rz and the microhardness along the peening axis into the material. Graphically processed results show a clear increase of measured values with increasing pressure (<i>p</i> = 10, 20 and 30 MPa), where the roughness values ranged from 1.89 µm to 4.11 µm, and the microhardness values ranged from 43.3 HV<sub>0</sub>.<sub>005</sub> to 47 HV<sub>0</sub>.<sub>005</sub>, as compared to 40.3 HV<sub>0</sub>.<sub>005</sub> obtained for the untreated sample. The achieved results indicate potential using of an ultrasonic pulsating water jet as a new method of surface treatment of metals. By controlled distribution of water droplets, it is possible to achieve a local distribution of surface roughness, and at the same time, strengthening of the subsurface layers in the material without thermal influence on the material. |
| first_indexed | 2024-03-10T06:25:33Z |
| format | Article |
| id | doaj.art-041af619ed52434ebafa6628add84c30 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T06:25:33Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-041af619ed52434ebafa6628add84c302023-11-22T18:57:52ZengMDPI AGMaterials1996-19442021-10-011420601910.3390/ma14206019Ultrasonic Pulsating Water Jet Peening: Influence of Pressure and Pattern StrategyGabriel Stolárik0Akash Nag1Jana Petrů2Jaroslava Svobodová3Sergej Hloch4Faculty of Manufacturing Technologies, Technical University of Kosice, Prešov, Bayerova 1, 08001 Presov, SlovakiaDepartment of Mechanical Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, IndiaDepartment of Mechanical Engineering, Vysoká Škola Báňská, Technical University, 708 00 Ostrava, Czech RepublicFaculty of Mechanical Engineering, University of J. E. Purkyně in Ústí nad Labem, 400 96 Czech RepublicFaculty of Manufacturing Technologies, Technical University of Kosice, Prešov, Bayerova 1, 08001 Presov, SlovakiaPeening techniques are nowadays attracting more research attention due to their association with the extending of the service life and improving surface texture of engineering components. Ultrasonic pulsating water jet peening represents a new way of mechanical surface treatment. Accelerated water droplets via hammer effect cause small elastic-plastic deformations on the surface. This work deals with peening of aluminum alloy using an ultrasonic pulsating water jet, where periodically acting water droplets were used as the peening medium. The aim of the work was the feasibility study of the peening process and to observe the effects of pressure (<i>p</i> = 10, 20 and 30 MPa) and pattern trajectory (linear hatch and cross hatch). The peened surfaces were analyzed by the surface roughness profile parameters Ra and Rz and the microhardness along the peening axis into the material. Graphically processed results show a clear increase of measured values with increasing pressure (<i>p</i> = 10, 20 and 30 MPa), where the roughness values ranged from 1.89 µm to 4.11 µm, and the microhardness values ranged from 43.3 HV<sub>0</sub>.<sub>005</sub> to 47 HV<sub>0</sub>.<sub>005</sub>, as compared to 40.3 HV<sub>0</sub>.<sub>005</sub> obtained for the untreated sample. The achieved results indicate potential using of an ultrasonic pulsating water jet as a new method of surface treatment of metals. By controlled distribution of water droplets, it is possible to achieve a local distribution of surface roughness, and at the same time, strengthening of the subsurface layers in the material without thermal influence on the material.https://www.mdpi.com/1996-1944/14/20/6019PWJ peeningsurface modificationsurface topographymicrohardness |
| spellingShingle | Gabriel Stolárik Akash Nag Jana Petrů Jaroslava Svobodová Sergej Hloch Ultrasonic Pulsating Water Jet Peening: Influence of Pressure and Pattern Strategy Materials PWJ peening surface modification surface topography microhardness |
| title | Ultrasonic Pulsating Water Jet Peening: Influence of Pressure and Pattern Strategy |
| title_full | Ultrasonic Pulsating Water Jet Peening: Influence of Pressure and Pattern Strategy |
| title_fullStr | Ultrasonic Pulsating Water Jet Peening: Influence of Pressure and Pattern Strategy |
| title_full_unstemmed | Ultrasonic Pulsating Water Jet Peening: Influence of Pressure and Pattern Strategy |
| title_short | Ultrasonic Pulsating Water Jet Peening: Influence of Pressure and Pattern Strategy |
| title_sort | ultrasonic pulsating water jet peening influence of pressure and pattern strategy |
| topic | PWJ peening surface modification surface topography microhardness |
| url | https://www.mdpi.com/1996-1944/14/20/6019 |
| work_keys_str_mv | AT gabrielstolarik ultrasonicpulsatingwaterjetpeeninginfluenceofpressureandpatternstrategy AT akashnag ultrasonicpulsatingwaterjetpeeninginfluenceofpressureandpatternstrategy AT janapetru ultrasonicpulsatingwaterjetpeeninginfluenceofpressureandpatternstrategy AT jaroslavasvobodova ultrasonicpulsatingwaterjetpeeninginfluenceofpressureandpatternstrategy AT sergejhloch ultrasonicpulsatingwaterjetpeeninginfluenceofpressureandpatternstrategy |